Check out which companies are making headlines before the bell:
Harman International — Samsung is buying the U.S.-based automobile technology company for $8 billion in all-cash transaction. It is the biggest-ever overseas acquisition for a South Korean company.
Mentor Graphics — Mentor is being bought by Germany's Siemens for $4.5 billion in cash, or $37.25 per share. Mentor is a maker of computer software used in designing computer chips.
Pfizer — The drugmaker's Celebrex arthritis drug is at least as safe as prescription-strength doses of ibuprofen and naproxen, according to the results of a 10-year study.
Novartis — Novartis is considering the sale of its Alcon eye care products division, according to the drugmaker's chairman Joerg Reinhardt. He told a Swiss weekly newspaper that the division has not done as well as the company had expected.
Toyota — The automaker agreed to settle a case involving truck rust for up to $3.4 billion. The settlement involves various Tacoma, Tundra, and Sequoia models that were alleged to have poor rust protection.
Johnson & Johnson — J&J saw mixed results for an experimental drug designed to treat rheumatoid arthritis when compared to Abbvie's best-selling Humira treatment.
Hewlett-Packard Enterprise — The former chief financial officer of Autonomy was indicted for allegedly making fraudulent claims ahead of Hewlett-Packard's 2011 purchase of the software company for $11 billion. HP eventually took an $8.8 billion writedown on the deal, and successor company HPE sold off parts of that business earlier this year.
Duke Energy — Duke will pay $27 million to settle a lawsuit over its firing of William Johnson in 2012. Johnson had been head of Progress Energy when it was acquired by Duke, and was set to be CEO of the combined company. However, he was fired within hours of the deal's closing.
Coca-Cola — Coca-Cola may become a takeover target of beer brewing giant Anheuser-Busch InBev, according to a story in the Sunday Telegraph. People close to Ab InBev CEO Carlos Brito told the paper that following consolidation in the beer industry, Brito is looking at different beverage targets.
Chico's FAS, L Brands, Kohl's — The retailers were upgraded by Citi to "buy" from "neutral," on the thesis that likely tax reform under a Donald Trump administration will provide a bump for retail in general and these companies in particular.
SciClone Pharmaceuticals — Shareholder GL Management has offered to acquire the drugmaker for $11.18 per share in cash, compared to Friday's close of $9.85. GL holds a 9.3 percent stake in SciClone.
Amazon.com — Amazon announced the expansion of its Home Services business into 20 new markets, including Indianapolis, Las Vegas, Milwaukee, and Cleveland.
Citigroup — Morgan Stanley upgraded Citi to "overweight from "equal weight" based on the idea that tax cuts coupled with stronger economic growth under the Trump administration will benefit banks in general, while pointing to Citi as particularly undervalued.
Viacom — Viacom was downgraded to "hold" from "buy" at Brean Capital, which questions the value of a possible combination between Viacom and CBS, as well as the probability that this will occur.
Lockheed Martin — Stifel upgraded the defense contractor to "buy" from "hold," based on expectations for defense spending under a Trump administration.
Square — The mobile payments company was upgraded to "overweight" from "sector weight" at Pacific Crest, based on the firm's bullish stance on mobile payments in general and Square's ability to increase profit margins and generate substantial cash flow.